/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.flowable.ui.common.security;

import com.mdp.safe.client.utils.LoginUtils;
import org.flowable.idm.api.User;
import org.flowable.ui.common.model.RemoteUser;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.util.StringUtils;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;

/**
 * Utility class for Spring Security.
 */
public class SecurityUtils {

    private static User assumeUser;

    private SecurityUtils() {
    }

    /**
     * Get the login of the current user.
     */
    public static String getCurrentUserid() {
        User user = getCurrentUserObject();
        if (user != null) {
            return user.getId();
        }
        return null;
    }

    /**
     * @return the {@link User} object associated with the current logged in user.
     */
    public static User getCurrentUserObject() {
        if (assumeUser != null) {
            return assumeUser;
        }

 
         RemoteUser user = new RemoteUser();  
         com.mdp.safe.client.entity.User  mdpUser= LoginUtils.getCurrentUserInfo();
        user.setId(mdpUser.getUserid());
        user.setDisplayName(mdpUser.getDisplayUserid());
        user.setFirstName(mdpUser.getUsername());
        user.setFullName(mdpUser.getUsername());
        user.setLastName("");
        user.setEmail(mdpUser.getEmail());
        user.setPassword(mdpUser.getPassword());
        user.setTenantId(mdpUser.getBranchId());
        List<String> pris = new ArrayList<>();
        pris.add(DefaultPrivileges.ACCESS_MODELER);
        pris.add(DefaultPrivileges.ACCESS_IDM);
        pris.add(DefaultPrivileges.ACCESS_ADMIN);
        pris.add(DefaultPrivileges.ACCESS_TASK);
        pris.add(DefaultPrivileges.ACCESS_REST_API);
        user.setPrivileges(pris);
        return user;
    }

    public static FlowableAppUser getCurrentFlowableAppUser() {
            	RemoteUser user = new RemoteUser();  
                com.mdp.safe.client.entity.User  mdpUser= LoginUtils.getCurrentUserInfo();
                if(!StringUtils.hasText(mdpUser.getUserid())){
                    mdpUser.setUserid("guest");
                    mdpUser.setUsername("游客");
                    mdpUser.setBranchId("platform-branch-001");
                }
               user.setId(mdpUser.getUserid());
               user.setDisplayName(mdpUser.getDisplayUserid());
               user.setFirstName(mdpUser.getUsername());
               user.setFullName(mdpUser.getUsername());
               user.setLastName("");
               user.setEmail(mdpUser.getEmail());
               user.setPassword(mdpUser.getPassword());
               user.setTenantId(mdpUser.getBranchId());
               Set<GrantedAuthority> pris = new HashSet<>();
                pris.add(new SimpleGrantedAuthority(DefaultPrivileges.ACCESS_MODELER));
               pris.add(new SimpleGrantedAuthority(DefaultPrivileges.ACCESS_IDM));
               pris.add(new SimpleGrantedAuthority(DefaultPrivileges.ACCESS_ADMIN));
               pris.add(new SimpleGrantedAuthority(DefaultPrivileges.ACCESS_TASK));
               pris.add(new SimpleGrantedAuthority(DefaultPrivileges.ACCESS_REST_API));
               FlowableAppUser user2=new FlowableAppUser(user, user.getId(), pris);
               return user2;
    }

    public static boolean currentUserHasCapability(String capability) {
        FlowableAppUser user = getCurrentFlowableAppUser();
        for (GrantedAuthority grantedAuthority : user.getAuthorities()) {
            if (capability.equals(grantedAuthority.getAuthority())) {
                return true;
            }
        }
        return false;
    }

    public static void assumeUser(User user) {
        assumeUser = user;
    }

    public static void clearAssumeUser() {
        assumeUser = null;
    }

}